Railway-truck.



w. M. FAWGETT & G. L, SWABB. RAILWAY TRUCK.

APPLIOATION FILED PEB.27, 1911.

Patented June 6, 1911.

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l'niwmor s f 6 sm W/gxi/ QHMOMQQ UNITED STATES PATENT OFFICE.

WILLIAM M. FAWGETT AND GEORGE L. SWABB, OF ERIE, PENNSYLVANIA,ASSIGNOIRS TO THE I-IEISLER LOCOMOTIVE WORKS, OF ERIE, PENNSYLVANIA, ACORPORATION v OF PENNSYLVANIA.

RAILWAY-TRUCK.

Specification of Letters Patent.

Patented June 6, 1911.

Application filed February 27, 1911. Serial No. 611,241.

To all whom it may concern:

Be it known that we, WILLIAM M. FAW- OETT and GEORGE L. SWABB, citizensof the United States, residing at Erie, in the county of Erie and Stateof Pennsylvania, have invented new and useful Improvements inRailway-Trucks, of which the following is a specification.

This invention relates to railway trucks, and consists in certainimprovements in the construction thereof aswill be hereinafter fullydescribed and pointed out in the claims.

More particularly the invention relates to locomotive trucks, especiallythat type of trucks known as geared locomotives.

The invention is peculiarly adapted for locomotives wherein it isdesired to use more than two trucks from a single source of power. Wherethis is done, it is desirable to arrange a longitudinal shaft which willextend across the intermediate truck, and also drive the intermediatetruck.

Among the important objects of theinvention is to provide a railwaytruck in which the different members of the frame are so connected thatvariations in the track will not strain the frame, and to this end, weform the frame with frame sides which are mounted on the axles, andconnect these frame sides with a cross bar, the connection being in theform of a joint with the axis of the joint crosswise of the frame. Inthis way, the ends of the side frames, or the different wheels mayfollow the sinuosities of the track in a vertical direction without inFig. 1. The part at the right of Fig. 3

being on the line 3=*3 in Fig. 1 and the part at the left of Fig. 3being on the line 3-3 in Fig. 1. Fig. 4. a section of the web of theaxle gear. Fig. 5 a sectional view of the axle gear rim.

1, 1, 1,1, mark the truck wheels. These are fixed on the axles 2, 2.Bearings 3,3, 3, 3, are arranged on the axles, and the side frames 4, 4,are carried by these hearings. A cross bar 5 connects the side frames,the side frames being provided with bearings 6 for this purpose. Thesebearings have the tops formed in the side frame, and have removable caps7 at the bottom. The cross bar 5 has the shoulders 8 and 9 at the endsof the bearings 6, thus locking the side frames laterally with relationto the cross bar. It will be noted that the bearings are of considerablelength so that the side frames are held in a vertical position by thecross bar, but at the same time, the ends of the side frames can swingon the cross bar and relatively to each other to follow the sinuositiesof the track in a vertical direction.

The side frames are provided with the spring pockets 10. These are openat the top as clearly shown at the top of Fig. 1. Springs 11 arearranged in these pockets, the bottoms of the springs resting on thebottom of the pocketas clearly shown in Fig. 3. The spring bar 12extends across the truck and the ends 13 of the spring bar extend intothe pocket and rest on the springs. The ends, however, do not fit thepocket so closely as to interfere with the freedom of :movement of theside frames on the cross bar. Caps 14 are arranged across the ends conerollers 19 are arranged at each side of the center ofthe spring bar 12.These cone rollers have the pins 20 which extend into the bearings 21 inthe spring bar. The bearing plate 22 on the bolster is normally just incontact with these rollers. In this way the rollers receive any unduestrain from the bolster, and relieve any friction there may be betweenthe plate 22 and the spring bar.

We prefer to provide flexible tie rods 23 at the top of the truck. Asshown, these are in the form of fiat bars whioh'have the downwardly bentends 24 and are secured to the side frames by means of the bolts 25.These tend to hold the upper parts of the side frames against spreading,and relieve the bearings 6 of some of this strain. It will beunderstood, however, that these tie rods are sufficiently flexible topermit of the free swinging of the side frames under strain on thebearings 6. The power is preferably supplied to one of the axles, andconnected to the wheels on the other axle by the connecting rods 26which are arranged to operate on the cranks on the wheels.

The driving mechanism is as follows: The drive shaft 27 extendslongitudinally of the truck above the axles. The drive shaft 27 isconnected by the knuckle joints 28 and 29 with the shafts 30 and 31.Ordinarily one of the shafts 30 or 31 conveys the power to the shaft 27and the other of the shafts 30 or 31 is driven from the shaft 27 tocommunicate the power to another truck. It will be understood, however,that one of the shafts 30 or 31 may be and ordinarily is omitted wherethe truck as shown is used as an end truck. A gearing frame 32 ismounted on one of the axles by means of the bearings 33 and 34. Thisgear frame has the downwardly extending ears 35 which extend each sideof a lug 36 extending upwardly from the cross bar 5. A pin 36 extendsthrough the ears and the lug forming a mounting for the gear frame onthe cross bar 5, the mounting being in the form of a joint with the axisof the joint lengthwise of the truck. This allows the gear and frame toswing with the axle. The drive shaft 27 is mounted in the gear frame bymeans of the bearings 27 and 27", these bearings being as widelyseparated as they can be conveniently to better support the shaft. Aspur gear 37 is fixed on the shaft 27 and meshes a gear 38. The gear 38is fixed on the auxiliary shaft 39 which is arranged parallel to theshaft 27 and is dropped below the plane of the shaft 27 a sufficientdistance to bring the axis of the shaft 39 into alinement with the axisof the axle. The shaft 39 is mounted in the bearing 40 in the gear frame32. The beveled gear 41 is fixed on the shaft 39 at the end of saidshaft opposite the gear 38. The beveled gear 41 meshes the gear 42 fixedon the axle. In this way, the shaft 27 may be carried across the axles 2and the power delivered to the axle of the truck by spur and beveledgears forming a very efficient means for communicating the power. At thesame time, the gear frame is supported by one of the axles and the crossbar so that the gear frame may be made of suflicient rigidity tomaintain the alinement of the shafts and the proper relation of thegears. The gear frame, it will be observed, extends around the gear 42having a bearing at both sides of said gear so as to maintain therelation between the beveled gears. At the same time, this scheme ofdriving lends itself readily to a flexible truck frame, com prisingframe sides with the cross bar connected with said side'frames with aswivel joint.

WVe have shown beveled gear 42 in Figs. 4 and 5. It is formed of thecenter web 44 fixed on the shaft and the gear segments 43 carrying thegear teeth which are secured to the web 44 by the bolts 45. By arrangingthe gear at one side of the center of the axle and having the gear facetoward the center of the axle, it is possible to remove these segmentsand renew them without taking down a large part of the gear frame. Italso permits of a more satisfactory bearing for the bearing frame.

' \Vhat we claim as new is:

1. In a device of the class described, the combination of truck axles;side truck frames mounted on the axles; a cross bar; a swivel connectionbetween the cross bar and side frames, the axis of the connection beingcrosswise of the frame; and means independent of said bar for sustainingthe load on the truck.

2. In a device of the class described, the combination of truck axles;side truck frames mounted on the axles; spring pockets in the sideframes; a cross bar, a swivel connection between the cross bar and sideframes, the axis of the connection being crosswise of the frame; and aspring bar resting on the springs, said spring bar be ing flexiblysecured in place in the pockets.

3. In a device of the class described, the combination of truck axles;side truck frames mounted on the axles; spring pockets arranged in theside frames; springs in the pockets; a spring bar mounted on the springsand flexibly secured in the pockets; a cross bar; and a swivelconnection between the cross bar and side frames, the axis of theconnection being crosswise of the frame, said connection being arrangedto sustain the side frames in position independently of the spring bar.

4. In a device of the class described, the combination of truck axles;side truck frames mounted on the axles; spring pockets arranged in theside frames; springs in the pockets; a spring bar mounted on the springsand flexibly and removably secured in the pockets; a cross bar; and aswivel connection between the cross bar and side frames, the axis of theconnection being crosswise of the frame, said connection being arrangedto sustain the side frames in position independently of the spring bar,said spring bar being removable with the side frames in place on thecross bar.

5. In a device of the class described, the combination of truck axles;side truck frames mounted on the axles; a cross bar;

a swlvel connectlon between the crossbar and side frames, the axls ofthe connection belng crosswise of the frame; and a flexible tie rodextending from the top of one side frame to the top of the other.

6. In a device of the class described, the combination of truck axles;frame sides mounted on said axles; a cross bar connecting the sides; agear frame mounted upon one of the axles and the cross bar; a beveledgear on the axle carrying the bearing frame; an auxiliary shaft mountedin the gear frame; abeveled gear on said shaft meshing the gear on theaxle; a drive shaft mounted on the gear frame; and a drive connectionbetween the two shafts.

7. In a device of the class described, the combination of truck axles;frame sides mounted on said axles; a cross bar connecting the sides; agear frame mounted upon one of the axles and the cross bar; a beveledgear on the axle carrying the gear frame; an auxiliary shaft mounted inthe gear frame; a beveled gear on said shaft meshing the gear on theaxle; a drive shaft mounted on the gear frame in parallel relation withthe auxiliary shaft; and a drive connection between the two shafts.

8. In a device of the class described, the combination of truck axles;frame sides mounted on the axles; a cross bar connecting the sides; agear frame mounted on one of the axles and having a swivel connectionwith the cross bar, the axis of the connection being lengthwise of thetruck; a beveled gear on the axle carrying the gear frame; an auxiliaryshaft mounted on the gear frame; a beveled gear mounted on the auxiliaryshaft meshing the gear on the axle; a drive shaft extending over theaxles; and a drive connection between the drive shaft and the auxiliaryshaft.

9. In a device of the class described, the combination of truck axles;side truck frames mounted on the axles; a cross bar; a swivel connectionbetween the cross bar and side frame, the axis of the connection beingcrosswise of the frame; a gear frame mounted on one of the axles andsaid cross bar; a drive shaft carried by the gear frame; and a gearconnected between the drive shaft and the axle carrying the gearframe.

10. In a device of the class described, the combination of truck axles;side truck frames mounted on the axles; a cross bar; a swivel connectionbetween the cross bar and side frame, the axis of the connectionbeingcrosswise of the frame; a gear frame mounted on one of the axles andsaid cross bar; a drive shaft journaled in the gear frame with its axisout of the plane of the axle carrying the gear frame; and a gearconnection between the drive shaft and the axle carrying the gear frame.

11. In a device of the class described, the combination of truck axles;side truck frames mounted on the axles; a cross bar; a swivel connectionbetween the cross bar and side frames, the axis of the connection beingcrosswise of the frame; a gear frame mounted on one of the axles andconnected with the cross bar by a hinge joint, the axis of the hingebeing lengthwise of the. truck; a drive shaft mounted on the gear frame;and a gear connection between the drive shaft and the axle carrying thegear frame.

12. In a device of the class described, the combination of truck axles;side truck frames mounted on the axles; a cross bar; a swivel connectionbetween the cross bar and side frames, the axis of the connection beingcrosswise of the frame; a gear frame mounted on one of the axles andsaid cross bar; a drive shaft having a bearing on the gear frameextending in a longitudinal direction past the axle carrying the gearframe; an auxiliary shaft carried by the gear frame, having its axis inthe same plane as the axis of the axle carrying the gear frame; abeveled gear connection between the auxiliary shaft and the axle; and adrive connection between the drive shaft and the auxiliary shaft.

18. In a device of the class described, the combination of truck axles;side frames mounted on the axles; a cross bar connecting the frames; abeveled gear mounted between the wheel and the center of the axle andhaving its face toward the center of the axle, said gear being made upof a web fixed on the shaft, and gear faces attached to the web; a gearframe extending around said gear and having a bearing on the axle andattached to the cross bar; said frame having a longitudinal bearingadjacent to the axle for the drive shaft of the truck; the drive shaftjournaled in said longitudinal bearing; and a drive mechanism connectingthe drive shaft with said beveled gear, said driving mechanismcomprising a beveled gear meshing the beveled gear on the axle andarranged between the beveled gear on the axle and the center of theaxle. I

In testimony whereof we have hereunto set our hands in the presence oftwo subscribing witnesses.

WILLIAM M. FAWOETT. GEORGE L. SWABB.

Witnesses v BLANGHE HARTMAN,

THOMAS C. MILLER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

.Washington, D. G.

